Introducing new JavaScript optimizations, WebAssembly, SharedArrayBuffer, and Atomics in EdgeHTML 16
Introducing new JavaScript optimizations, WebAssembly, SharedArrayBuffer, and Atomics in EdgeHTML 16 JavaScript performance has always been a core area of focus for our team. Every release, we look for opportunities to improve end users’ browsing experience on real workloads with shorter start-up time, faster execution, and leaner memory usage. These efforts are guided by invaluable ongoing custom
HTML Web Component using Vanilla JavaScript
Web Components have been around for a while now. Google has really been trying to push for their more widespread adoption, but most major browsers still have very little support for it, except for Opera and Chrome. However, by using polyfills, available from https://www.webcomponents.org/polyfills, you can build your own Web Components now. In this article, I’m going to teach you how to create you
MicrosoftのNapa.jsでJavaScriptをマルチスレッド化する | PLAID engineer blog
こんにちは、プレイドの @makinoy です。 久しぶりのBlog投稿です。書こうとして止めていた記事はひとまず置いといて今回新しく一つ記事を書くことにしました。 テーマはNapa.jsを使ってJavaScriptでmulti-threadingをやってみる、です。 背景 フロントエンドからバックエンドまで含めて考えると、KARTEのコードの大部分はJavaScriptで書かれています。その理由の大半は、特にフロントエンドよりの話が多く、Angular.js, React.js, Vue.jsに代表されるWebフレームワークの著しい発展や、V8のパフォーマンスの進化、Node.jsやNPMなどその周辺のモジュールのエコシステムの充実が大きいと思います。 KARTE的には、スキーマレスな構造データを扱えることが特徴の一つなので、その周辺の操作に関しては動的言語が適しているというポイントもあ
A complete guide to forms in Vue.js - LogRocket Blog
Editor’s note: This guide to forms in Vue.js was updated on 19 January 2021. Learning to work with forms properly in our favorite frameworks is valuable, and it can save us some time and energy during development. In this tutorial, I will walk you through the process of creating, validating, and utilizing inputs from a form in a Vue.js v2.x application. To follow along with this tutorial, you will
Introducing PayPal’s open-source cross-domain javascript suite
At PayPal we write a lot of javascript that ends up running on other websites and other domains. The prime example of this is checkout.js, the integration script for our entire checkout experience, which allows merchants to embed our button and checkout flow seamlessly into their sites. There are a huge number of perils and pitfalls around running our code on third-party sites, though: We absolute
Introducing Redux Zero
Redux Zero is a lightweight state container based on Redux with a single store and no reducers, 100% written in TypeScript. Less than 1kb (gzip). Made for (p)react ⚛️ By Concrete 💙 We all love Redux. It’s probably one of the few things that are adopted by React, Angular and Vue people. (Thanks, ) But for some cases, Redux is way too much. Maybe you don’t want to add all of that boilerplate to you
How to drop Bower support? · Bower blog
From time to time I get asked how to drop Bower support as an owner of JavaScript module as so developers who already use this module (in both applications and other modules) won’t get mad at you. This procedure is as follows: Before, notify all users of your module who might be affected by this change (see below) Remove all distribution files and bower.json from repository Tag repository with new
Next.js 3.0 Release: What's New?
TL;DR: On Tuesday, October 25 2016, a small JavaScript framework, Next.js was released to the public. It's a minimal framework for building server-rendered universal JavaScript web apps. Within a few months of its existence, it gathered a lot of attention from the JavaScript community. The React community was set ablaze with joy for finally having a tool that can help build server-side rendering a
To type or not to type: quantifying detectable bugs in JavaScript | the morning paper
the morning paper a random walk through Computer Science research, by Adrian Colyer Made delightfully fast by strattic To type or not to type: quantifying detectable bugs in JavaScript Gao et al., ICSE 2017 This is a terrific piece of work with immediate practical applications for many project teams. Is it worth the extra effort to add static type annotations to a JavaScript project? Should I use
Learn How To Debug JavaScript with Chrome DevTools
As a new developer, finding and fixing bugs can be difficult. You may be tempted to randomly use console.log() in an attempt to get your code working correctly. Not Anymore! This article is all about debugging the correct way! You’ll learn how to use the Chrome Developer Tools to set up breakpoints and step through your code. This workflow is often a much more efficient way to find and fix bugs in
Angular vs. React vs. Vue: A 2017 comparison
Deciding on a JavaScript framework for your web application can be overwhelming. Angular and React are very popular these days, and there is an upstart which has been getting a lot of traction lately: VueJS. What’s more, these are just a few of the new kids on the block. Javascripts in 2017 — things aren’t easy these days!So, how are we supposed to decide? A pros-and-cons list never hurts. We’ll d
Introducing visualViewport | Blog | Chrome for Developers
What if I told you, there's more than one viewport. BRRRRAAAAAAAMMMMMMMMMM And the viewport you're using right now, is actually a viewport within a viewport. BRRRRAAAAAAAMMMMMMMMMM And sometimes, the data the DOM gives you, refers to one of those viewport and not the other. BRRRRAAAAM… wait what? It's true, take a look: Layout viewport vs visual viewport The video above shows a web page being scro
JavaScript Binary AST Engineering Newsletter #1
Hey, all cool kids have exciting Engineering Newsletters these days, so it’s high time the JavaScript Binary AST got one! Summary JavaScript Binary AST is a joint project between Mozilla and Facebook to rethink how JavaScript source code is stored/transmitted/parsed. We expect that this project will help visibly speed up the loading of large codebases of JS applications and will have a large impac
Rethinking drag and drop
introducing react-beautiful-dndDrag and drop is an intuitive way of moving and rearranging things. We at Atlassian have recently released react-beautiful-dnd which makes drag and drop for lists on the web more beautiful, natural and accessible. PhysicalityThe core design idea of react-beautiful-dnd is physicality: we want users to feel like they are moving physical objects around. This is best ill
Introduction to Preact : A smaller, faster React alternative - LogRocket Blog
Preact is a JavaScript library that describes itself as a fast 3kB alternative to React with the same ES6 API. As a frequent user of React, I’d always wanted to try out Preact and see what it offers, and the differences between Preact and React. In this article, I’ll do an introduction to Preact, its key concepts and differences between Preact and React. I’ll also demonstrate how Preact works with
babel-preset-env@2.0 を試した -トランスパイル環境をスケールさせていく -
こんにちは、制作部 フロントエンドエンジニアの武田です。 入社して5ヶ月経ちました。 ECMAScript の推し proposal は Cancellation API です。 今回は開発には切っても切れない Babel 、そのプリセットである babel-preset-env についてお話します。 このプリセットは Browserslist 1 の記述で compat table 2 を利用し、指定された環境にあったトランスパイルができるプリセットです。 使い方についての記事はすでに多くありますので今回は丁寧に触れません。 babel-preset-env を試す – アカベコマイリ最新版で学ぶwebpack 3入門 - ICS MEDIAピンと来ない方は、JavaScript をとりまくビルド環境のスケーリングに寄与しそう、と大きく理解していただいてよいです。 対象となりそうな人Ba
This in JavaScript | Zell Liew
(Hey, we're having problems showing images in RSS right now, so if you want a better reading experience, consider viewing this article online [here](https://zellwk.com//blog/this. We hope to fix this soon!). Are you confused by the this keyword in JavaScript? It confuses everyone in the beginning, so don't worry about it. You're not alone. But that doesn't mean you can go on without understanding
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